Device for transmitting the rotary motion of a motor to the wheels of vehicles



July z9,1924. 1,503,221

J. W DEVICE Fon TRANSMITTING THE ROTARY MoTIoN oF A MOTOR To THE WHEELS 0F VEHICLES Filed oct. 5, 1923 JACOB WERYZ, OF GENEVA, SWITZERLAND, ASSIGNOR TO SOCIT ANONYME DES ATELIERS DE SECHERO'N, OF GENEVA, SWITZERLAND, A CORPORATION OF SWITZER- LAND.

DEVICE FOR TRANSMITTING THE ROTARY MOTION OF A MOTOR TOY THE WHEELS OF VEHICLES.

Application led October 5,1923. xSeral No. 666,68()` Y v @ZZ whom it may concern:

Be it known that I, JACOB WERZ, a citizen of'SwitZerland, residing at Geneva, Canton of Geneva, in the Confederation 0f Switzerland, have invented certain new and useful Improvements in or Relating to Devices for Transmitting thevnRotary Motion of a Motor to the lVheels of Vehicles, of which the following is a specification.

This invention relates to improvements in devices for use on vehicles, mor'e particularly electric vehicles, for transmitting the rotary motion of a motor mounted rigidly onjthe vehicle frame to a set of wheels proy vided ywith side kplay relatively to the frame.

Well known devices of the kind comprise a sleeve or quill Vsurrounding the driving axis driven by the motor'by means of gear-y ing. Through the said quill passes the axle of the said set of wheels, and the rotary motion of the motor is transmitted to the said wheels by any kind of coupling so arranged that the quill and the axle of the said set of wheels can move in the vertical direction relatively to each other. Owing to the lateral side play of the set of wheels relatively to the vehicle frame, the running of the vehicles on curves can be improved for instance either by providing a certain amount of side play for the single sets of wheels, or by combining a set of wheels having lateral play with another set of wheels so as to form a bogie as is the case in the Krauss-Helmholtz ,bogies It has been found that the design of a flexible coupling that allows at the same time both a vertical and a lateral movement of the set of wheels relatively to the quill offers certain difhculties. When the lateral play is ample it unfavourably affects the vertical play.

According to the invention this disadvantage is avoided by mounting the quill with side play relativelyto the vehicle frame andto the motor.

A construction of the device is illustratedV by way of example in the accompanying drawing in which:

Figure l is a vertical section through the said construction, whilst Figure 2 shows a modified construction.

The quill a, which is driven by a gear wheel b mounted on the said quill and a pinion c secured tothe shaft of the motor c',

encloses the driving axle d il on which are mounted the wheels e, whilst f indicatesany` suitable coupling between the quill a and the driving wheels. y This coupling is' yof such a design that the driving axle `@Z-can move in the vertical direction relatively to the quill a.

The quill isguided in a casing g which casing itself is supported at 7L on thekmotor c' in such a way, thatit can yloe laterally displaced. Y Y

Into the hubs ofthe .wheels ve are insertedA a number of springs Zfpr'ovided with steel heads 7c. These springs are intended, on the one hand, to take'fuplateral shocks transmitted by the 'driving wheel to tlie"quil l and on the other hand to Venable the driving axle d to'take'up an oblique position relatively to the quill a.. Otherwise "the axle d could assume an oblique position relatively to the quill ay only if lateral play were provided between the quill and the hubs of the driving wheels, which however should be avoided as much as possible on account of the risk of lateral shocks. On the other hand, inaccurate mounting or displacement in service, or one sided jumping of the driving wheel set has always to be taken into account. Y

The wheel set in question forms with another wheel set, not shown in the drawing, a Kraussl-lehnholtz bogie. The lever which produces the lateral shifting, engages withV SOy As the driving motor i with the pinion c is rigidly mounted on the vehicle frame, the gear wheel b will be displaced relatively to the pinion c. For that reason, the pinion 0 is preferably made wider than the gear wheel b, so that the whole width of the latter should aways remain in contact with the pinion.

According to Fig. 2, the quill a, instead of being mounted in a casing which can be laterally displaced, is mounted directly on the motor When using this arrangement in combination with a Krauss-Helm- With the quill in any .other `.suitable manner.

In the case of a set of driving Wheels which is not combined with another set of Wheels to form a bogie but which has merely free lateral play, as is often the case in locomotives With several sets of driving Wheels for the intermediate axles, the quill would als0preerably be mounted. as 4Shown o in Figure 2, in Whieli oase the collars or .bosses` m would be omitted as the r lateral movement Yofthe quill would be broughtv :the said quill.

about. ,by ,the set of Wheels.

'Thefeouphngjfor transmitting the rotary motion of the'- quillto ,the set of the Wheels could ralso be constituted by or be provided with, springs.

Having `A110W ParticularlyV described and ascertained the .nature .0f-my said invention, and in What manner the same is ,toghev per formed, dealer@ that what I Claim is 1" 1. In afdevice `for use on vehicles, more i particularly. electric vehieies,`for transmittingthe rotaryv zmotion of a Mmotorrigidly mounted on thevehiclefframe, to a setr of xvheel's ,with side play relatively tothe vehicle frame, vdevice tcomprising a motor,

a quill driven by said motor, means for gearing the axle of said Wheel 'set arranged so as to pass through said motor driven quill, a coupling for transmitting the rotation .of the quill to the set of Wheels in -Svuclia manner that the quill and the axle of the set of Wheels can move yvertically relatively to each other, being at the same time arranged lin lsuoli a' manner vthat a. lateral play is provided for between the quill relatively to the vehicle frame and to fthe motor.

2. A device as in claim l, in Whicha lever is.r provided for producing the lateral kInovenient othe quill, said flever being mounted by in eansofa ring-andf-coll-a'rs or bosses-on 3. A; device as in claim 1,'finwhich springs are arranged between the quillvand the hfubs of tlievvlieels othesaid Wheel set, fforftfhe purpose of taking upf'lateral shocks.A

4. A device as in y claim 1,in whichl the gear ywlieels -for transmitting :the `rotary mo tion of the motor to the quillare .madevof ,different Widths;

ln test-imony-wvhereofl liaveafxed `my signature in Vpresence'eist-w50 Witnesses.

i' JACOB WiEBZ.

i `Manieren "IMEY,

Dr. v Ron DE lVURsfrEi/innenn. 

